From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Wed, 25 Mar 2020 09:08:16 +0000 (+0100)
Subject: net: ping: reset stored IP once the command finishes to avoid interrupting other... 
X-Git-Tag: submit/tizen/20201110.005738~104
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6a0423b1acb2e63efaea42cbfb545d6a2bf1d109;p=platform%2Fkernel%2Fu-boot.git

net: ping: reset stored IP once the command finishes to avoid interrupting other protocols

Reset stored ping IP address before leaving the netloop to ensure that the subsequent calls
to the netloop, especially for the other protocols, won't be interrupted by the received
ICMP_ECHO_REPLY packet.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I0d90b3a6e9481c8e8237874eff8a9a12df4190e0
---

diff --git a/net/ping.c b/net/ping.c
index 0e33660f6c..ea35601d30 100644
--- a/net/ping.c
+++ b/net/ping.c
@@ -65,6 +65,7 @@ static int ping_send(void)
 static void ping_timeout_handler(void)
 {
 	eth_halt();
+	net_ping_ip.s_addr = 0;
 	net_set_state(NETLOOP_FAIL);	/* we did not get the reply */
 }
 
@@ -86,8 +87,10 @@ void ping_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
 	switch (icmph->type) {
 	case ICMP_ECHO_REPLY:
 		src_ip = net_read_ip((void *)&ip->ip_src);
-		if (src_ip.s_addr == net_ping_ip.s_addr)
+		if (src_ip.s_addr == net_ping_ip.s_addr) {
+			net_ping_ip.s_addr = 0;
 			net_set_state(NETLOOP_SUCCESS);
+		}
 		return;
 	case ICMP_ECHO_REQUEST:
 		eth_hdr_size = net_update_ether(et, et->et_src, PROT_IP);